EXTRA · Parashas Vayeishev · Passuk 37:19 · not a Torah Temimah citation on this passuk
They said to one another, “Here comes that dreamer!
Classical source (EXTRA side-ring): Bereshis Rabbah 84:14.
Sefaria — Bereshis Rabbah 84:14
English: “And they said to one another: Behold, that master of dreams is coming” — come, let us kill him, and we will see what will become of his dreams.
Derash on the verse (Bereshis Rabbah) — not a formal named middah of the 13. Mocking epithet becomes the motive-line of the plot.
They treat the dreams as the offense itself: kill the dreamer, and the dreams die with him.